Shipboard Propulsion Sensors Patent Snapshot 2026
The corpus for shipboard propulsion sensors is extremely narrow, with a single patent family in scope filed by CSSC Marine Power in China in 2019. Activity has not recurred since that peak year, and the field currently shows no evidence of multi-applicant competition or geographic spread.
Single applicant holds the entire mapped corpus
CSSC Marine Power is the only ranked applicant in this evidence snapshot, holding the sole patent family in scope — a complete monopoly within the current evidence boundary.
Concentration is absolute: the top five filers’ share of the ranked applicants visible in this query stands at 100%, with a single entity accounting for all activity. There is no second tier to speak of.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | CSSC Marine Power | 1 |
This position implies CSSC Marine Power has, at minimum, first-mover documentation in the specific intersection of shipboard propulsion and sensor technology as currently scoped. However, with only one family, the position is narrow and its commercial breadth remains unclear from this evidence alone.
The corpus reflects the search scope as constituted; broadening or reframing the query may surface additional families. Publication lag affects the most recent filings but is not a primary factor given activity ceased after 2019.
A single 2019 filing defines the entire activity profile
The annual trend and technology composition together paint a minimal but structurally clear picture: one filing event in 2019 mapped across two adjacent IPC branches, with no subsequent activity.
Annual filing trend
The trend line records one filing in 2019 and zero in all other years from 2017 through 2026. The field peaked in its first recorded year of activity and has not recovered. Years from 2024 onward are subject to publication lag, but the absence of activity predates that window.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The single family is classified under both B63B (Ships and marine vessels) and B63H (Marine propulsion and steering), indicating the invention sits at the intersection of vessel structure and propulsion mechanics — consistent with a propulsion sensor application. Neither branch has been developed further within this corpus.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
船用电力推进系统交流回馈加载装置及控制方法
本发明公开了一种船用电力推进系统交流回馈加载装置及控制方法，船用电力推进系统交流回馈加载装置包括推进电机、变频器、变压器、配电柜、陪试发电机、整流器、逆变器、出线柜、负载模拟控制器、联接柜、转速传感器、弹性联轴器、扭矩传感器；本发明通过模拟实际的船速工况和海况条件，能够保证电力推进系统的试验能够实现更加贴近实际运行情况，试验出各种性能参数，并且节省大量的能源消耗，电力推进的功率越大，其效果越明显。本发明可用于各种型式的电力推进系统的负载试验。 (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | 船用电力推进系统交流回馈加载装置及控制方法 | 9 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
CSSC Marine Power
CSSC Marine Power holds the only patent family in scope, filed in 2019 under IPC classes B63B and B63H, covering the intersection of marine vessels and propulsion systems. Applicant momentum data is not available for this entity given the single-family corpus, but the absence of subsequent filings within this scope indicates no documented continuation of this specific R&D line.
patent families: 1No challenger identified
No second applicant appears in the corpus. The challenger tier is entirely vacant within the current evidence boundary. Any entity entering this space would immediately become the second documented filer globally in this specific intersection.
patent families: 0Frequently asked questions
The current evidence scope contains 1 patent family. This is an extremely narrow corpus and likely reflects a tightly bounded search query rather than the full universe of related technology.
CSSC Marine Power is the only ranked applicant, holding the single patent family in scope. It is the wholly owned subsidiary of China State Shipbuilding Corporation focused on marine diesel and propulsion systems.
The single family in scope is filed exclusively in China. No PCT, US, EPO, or other foreign jurisdiction filings are recorded in the current evidence.
The existing family is classified under B63B (Ships and marine vessels) and B63H (Marine propulsion and steering). Adjacent classes such as G01M (mechanical testing and measurement) may also be relevant but are not represented in the current corpus.
Based on the current evidence, the lifecycle stage is classified as Decline. The sole filing occurred in 2019, and no subsequent activity has been recorded. However, the narrow corpus means this reading reflects the specific query scope and should not be taken as definitive for the broader propulsion sensor domain.
No co-applicant relationships are recorded in the evidence. The sole family appears to have been filed entirely by CSSC Marine Power without any disclosed university, government, or supplier co-inventor entities.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.